Olá!!
Tive uma certa dificuldade na parte de subir o server Jetty no início, pois minha porta 8080 estava sendo usada, resultando no erro:
Failure: Failed to bind to 0.0.0.0/0.0.0.0:8080: Address already in use: bind -> [Help 1]
Liberando a porta 8080, consegui executar mvn jetty:run pelo cmd e a acessar o localhost:8080 normalmente, porém ao executar o mesmo código pelo Eclipse, recebo o seguinte erro:
[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format : or :[:]:. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]
O que pode estar causando isso?